The Experts below are selected from a list of 22896 Experts worldwide ranked by ideXlab platform
Carlos Melo - One of the best experts on this subject based on the ideXlab platform.
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synchronization Server Infrastructure a relationship between system downtime and deployment cost
Systems Man and Cybernetics, 2017Co-Authors: Carlos Melo, Jamilson Dantas, Andre Oliveira, Paulo MacielAbstract:The perfect relationship between deployment costs and systems availability is one of the primary goals of companies that wish to provide some computer environment or service through the Internet. The question that everyone wants to know the answer is: How much may I save and still improve the availability of my system avoiding financial losses with an SLA contract breach? This paper attempts to respond to this question by combining some techniques used at dependability evaluation field, such like hierarchical models, sensitive analysis techniques, and analysis costs. The models shown in this paper are artifacts and scenarios for a data synchronization Server hosted at a private cloud computing platform based on Eucalyptus. Each scenario presented here was generated to study the impact of redundant techniques in the system availability and deployment cost. By analyzing each architecture separately and comparing them, we can indicate the one that has the best cost-benefit relationship and attends the providers, as well as the client's needs.
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SMC - Synchronization Server Infrastructure: A relationship between system downtime and deployment cost
2017 IEEE International Conference on Systems Man and Cybernetics (SMC), 2017Co-Authors: Carlos Melo, Jamilson Dantas, André De Sa Braga Oliveira, Paulo MacielAbstract:The perfect relationship between deployment costs and systems availability is one of the primary goals of companies that wish to provide some computer environment or service through the Internet. The question that everyone wants to know the answer is: How much may I save and still improve the availability of my system avoiding financial losses with an SLA contract breach? This paper attempts to respond to this question by combining some techniques used at dependability evaluation field, such like hierarchical models, sensitive analysis techniques, and analysis costs. The models shown in this paper are artifacts and scenarios for a data synchronization Server hosted at a private cloud computing platform based on Eucalyptus. Each scenario presented here was generated to study the impact of redundant techniques in the system availability and deployment cost. By analyzing each architecture separately and comparing them, we can indicate the one that has the best cost-benefit relationship and attends the providers, as well as the client's needs.
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availability models for synchronization Server Infrastructure
Systems Man and Cybernetics, 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
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SMC - Availability models for synchronization Server Infrastructure
2016 IEEE International Conference on Systems Man and Cybernetics (SMC), 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
Paulo Maciel - One of the best experts on this subject based on the ideXlab platform.
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synchronization Server Infrastructure a relationship between system downtime and deployment cost
Systems Man and Cybernetics, 2017Co-Authors: Carlos Melo, Jamilson Dantas, Andre Oliveira, Paulo MacielAbstract:The perfect relationship between deployment costs and systems availability is one of the primary goals of companies that wish to provide some computer environment or service through the Internet. The question that everyone wants to know the answer is: How much may I save and still improve the availability of my system avoiding financial losses with an SLA contract breach? This paper attempts to respond to this question by combining some techniques used at dependability evaluation field, such like hierarchical models, sensitive analysis techniques, and analysis costs. The models shown in this paper are artifacts and scenarios for a data synchronization Server hosted at a private cloud computing platform based on Eucalyptus. Each scenario presented here was generated to study the impact of redundant techniques in the system availability and deployment cost. By analyzing each architecture separately and comparing them, we can indicate the one that has the best cost-benefit relationship and attends the providers, as well as the client's needs.
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SMC - Synchronization Server Infrastructure: A relationship between system downtime and deployment cost
2017 IEEE International Conference on Systems Man and Cybernetics (SMC), 2017Co-Authors: Carlos Melo, Jamilson Dantas, André De Sa Braga Oliveira, Paulo MacielAbstract:The perfect relationship between deployment costs and systems availability is one of the primary goals of companies that wish to provide some computer environment or service through the Internet. The question that everyone wants to know the answer is: How much may I save and still improve the availability of my system avoiding financial losses with an SLA contract breach? This paper attempts to respond to this question by combining some techniques used at dependability evaluation field, such like hierarchical models, sensitive analysis techniques, and analysis costs. The models shown in this paper are artifacts and scenarios for a data synchronization Server hosted at a private cloud computing platform based on Eucalyptus. Each scenario presented here was generated to study the impact of redundant techniques in the system availability and deployment cost. By analyzing each architecture separately and comparing them, we can indicate the one that has the best cost-benefit relationship and attends the providers, as well as the client's needs.
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availability models for synchronization Server Infrastructure
Systems Man and Cybernetics, 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
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SMC - Availability models for synchronization Server Infrastructure
2016 IEEE International Conference on Systems Man and Cybernetics (SMC), 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
Luiz Kawakami - One of the best experts on this subject based on the ideXlab platform.
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availability models for synchronization Server Infrastructure
Systems Man and Cybernetics, 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
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SMC - Availability models for synchronization Server Infrastructure
2016 IEEE International Conference on Systems Man and Cybernetics (SMC), 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
Jamilson Dantas - One of the best experts on this subject based on the ideXlab platform.
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synchronization Server Infrastructure a relationship between system downtime and deployment cost
Systems Man and Cybernetics, 2017Co-Authors: Carlos Melo, Jamilson Dantas, Andre Oliveira, Paulo MacielAbstract:The perfect relationship between deployment costs and systems availability is one of the primary goals of companies that wish to provide some computer environment or service through the Internet. The question that everyone wants to know the answer is: How much may I save and still improve the availability of my system avoiding financial losses with an SLA contract breach? This paper attempts to respond to this question by combining some techniques used at dependability evaluation field, such like hierarchical models, sensitive analysis techniques, and analysis costs. The models shown in this paper are artifacts and scenarios for a data synchronization Server hosted at a private cloud computing platform based on Eucalyptus. Each scenario presented here was generated to study the impact of redundant techniques in the system availability and deployment cost. By analyzing each architecture separately and comparing them, we can indicate the one that has the best cost-benefit relationship and attends the providers, as well as the client's needs.
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SMC - Synchronization Server Infrastructure: A relationship between system downtime and deployment cost
2017 IEEE International Conference on Systems Man and Cybernetics (SMC), 2017Co-Authors: Carlos Melo, Jamilson Dantas, André De Sa Braga Oliveira, Paulo MacielAbstract:The perfect relationship between deployment costs and systems availability is one of the primary goals of companies that wish to provide some computer environment or service through the Internet. The question that everyone wants to know the answer is: How much may I save and still improve the availability of my system avoiding financial losses with an SLA contract breach? This paper attempts to respond to this question by combining some techniques used at dependability evaluation field, such like hierarchical models, sensitive analysis techniques, and analysis costs. The models shown in this paper are artifacts and scenarios for a data synchronization Server hosted at a private cloud computing platform based on Eucalyptus. Each scenario presented here was generated to study the impact of redundant techniques in the system availability and deployment cost. By analyzing each architecture separately and comparing them, we can indicate the one that has the best cost-benefit relationship and attends the providers, as well as the client's needs.
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availability models for synchronization Server Infrastructure
Systems Man and Cybernetics, 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
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SMC - Availability models for synchronization Server Infrastructure
2016 IEEE International Conference on Systems Man and Cybernetics (SMC), 2016Co-Authors: Carlos Melo, Jamilson Dantas, Jean Araujo, Paulo Maciel, Rodrigo Magosso Branchini, Luiz KawakamiAbstract:Users of computer systems wish to keep their personal data safe, updated, fair and accessible by other terminals, like personal computers, smart phones, portable consoles and PDAs. To perform these activities, one technology has become popular in our daily lives: data synchronization. Companies that provide this kind of service must do it with the greatest availability possible since their clients need their data to be available whenever they want to access it, and their customers in the legal field must avoid financial losses through SLA contract breaches. This paper presents hierarchical models for evaluating the availability of a data synchronization Server Infrastructure. The results show an availability of 98.82% for the proposed architecture, which means an annual downtime of 103 hours, this is more than 4 days of unavailability, where users cannot perform data synchronization.
Tomoyoshi Sugawara - One of the best experts on this subject based on the ideXlab platform.
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virtualized Server Infrastructure for resilient voice communication service
Network Operations and Management Symposium, 2014Co-Authors: Fumio Machida, Ryota Mibu, Junichi Gokurakuji, Kazuo Yanoo, Kumiko Tadano, Yoshiharu Maeno, Tomoyoshi SugawaraAbstract:The huge earthquake struck Japan on 11th March, 2011, caused a massive congestion of call attempts from mobile phones that resulted in only 5% of accepted connections due to the congestion control by telephone companies. It is an emergent issue to improve resiliency of communication service in anticipation of future disasters and thus communication service Infrastructure necessitates the flexibility of its capacity. In this paper, we introduce Server virtualization technology to provide a flexible communication service Infrastructure and design a communication service controller that provisions additional capacity by virtual machines in response to increased call attempts from mobile phones after a disaster. The communication service controller is designed with constraint programming and performance/availability estimations for deciding the optimum virtual machine placement according to network operator's instructions. Through an experimental disaster test, we confirm the capacity of communication service is increased five-fold by virtual machine provisioning with half an hour latency.
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NOMS - Virtualized Server Infrastructure for resilient voice communication service
2014 IEEE Network Operations and Management Symposium (NOMS), 2014Co-Authors: Fumio Machida, Ryota Mibu, Junichi Gokurakuji, Kazuo Yanoo, Kumiko Tadano, Yoshiharu Maeno, Tomoyoshi SugawaraAbstract:The huge earthquake struck Japan on 11th March, 2011, caused a massive congestion of call attempts from mobile phones that resulted in only 5% of accepted connections due to the congestion control by telephone companies. It is an emergent issue to improve resiliency of communication service in anticipation of future disasters and thus communication service Infrastructure necessitates the flexibility of its capacity. In this paper, we introduce Server virtualization technology to provide a flexible communication service Infrastructure and design a communication service controller that provisions additional capacity by virtual machines in response to increased call attempts from mobile phones after a disaster. The communication service controller is designed with constraint programming and performance/availability estimations for deciding the optimum virtual machine placement according to network operator's instructions. Through an experimental disaster test, we confirm the capacity of communication service is increased five-fold by virtual machine provisioning with half an hour latency.
